tester/bsp-builder: Add excluded build options to the base options.
Adding the exclude build options to the base options overrides the
default configure flags. An excluded build could be enabled by
default.
Only pause the jobs loop when it is not a dry run.

score: Modify _Scheduler_Unblock()
In SMP configurations, obtain the scheduler node for the block and
unblock operations through the same way via
Thread_Control::Scheduler::Scheduler_node. This symmetry is important
in a follow up patch which introduces thread pinning.
Update #3508.

network: Remove man page installation
The man page installation is broken since 2004-01-11 (commit
8c31a89fdf9bc3351d837df6ec26045bc9d5f021). Nobody complained about
this, so just remove some dead code from the Makefile.am.

network: Use kernel/user space header files
Add and use <machine/rtems-bsd-kernel-space.h> and
<machine/rtems-bsd-user-space.h> similar to the libbsd to avoid command
line defines and defines scattered throught the code base.
Simplify cpukit/libnetworking/Makefile.am.
Update #3375.

Sep 3, 2018:

score: Generalize SMP scheduler block support
Add extract from scheduled function to the _Scheduler_SMP_Block()
operation. This allows a scheduler implementation to do extra work in
case a scheduled node is blocked.

leon: do not use -mfix-{device} with Clang
Clang do not support -mfix-gr712rc, -mfix-ut700 and -mfix-ut699.
Therefore we adjust the CPU_CFLAGS to remove these when compiling with
Clang. Instead use
GR712RC: -mcpu=gr712rc
GR740: -mcpu=gr740
UT699/UT700: Not currently supported by clang, use LEON3 BSP.